The iFillCup K-cups are by far the best choice for refillable cups I've been able to find. They're very well made, easy and quick to use. They're also cost efficient. I've tried almost every combination of refillable K-cup available and none compare to the quality of these cups. By having the cup, lid, and filter pre-assembled, it makes using them a breeze; the lids fit snug without requiring much pressure. They're also truly Keurig 1 and 2.0 compatible, unlike other brands that make the claim of 2.0 compatibility. Love these cups!

Amazon Verified Purchase
Reviewed in the United States on August 24, 2019

These are the real deal - effective and usable. They have a large capacity which is useful and desirable in multiple ways - from having the capacity to make a stronger brew for the given water volume selections on the machine, to allowing enough internal volume to ensure adequate wetting and flow through different volumes of product - coffee in my case. The grind vs volume makes a big difference, and this pod has the capacity (volume) to let you experiment and get your final brew just the way you like it. Highly recommended.

Amazon Verified Purchase
Reviewed in the United States on November 17, 2019

These fillable cups make a great cup of custom coffee in my Keurig.
I was looking for an eco-friendly product and BPA-free.

5.0 out of 5 stars (Amazon Verified Purchase)
Reviewed in the United States on November 4, 2019